Dr.Hisao Imai

Dr.Ira B.Lamster

Dr.Takayoshi Kawazoe

Dr.Fumihiko Suwa

Dr.Letty Moss Salentijin

Seminar participants at Columbia a Univ. Medical Center

Lecture by Dr.Ira B.Lamster

At Irving Cancer Research Center Lecture by Dr.Peter Wang

Lecture by Dr.Peter Wang at Nobel Biocare

Representatives of both schools